Electrically heated hot water oven.
Portable incubator and stand by Townson and Mercer
Hot Water Drying Oven with double walls made of copper
circa 1900
Drying oven
Drying oven by Griffin and Tatlock
Drying oven by A. Gallenkamp and Co. Ltd.
Gallenkamp incubator size 2
1962-1968
Drying oven by Charles Hearson and Co. c. 1916 (patent No. 102538)
circa 1916
Two Hearsons patent electric drying ovens
Gallenkamp BS size 2 oven
1962-1968
Steam drying oven with aluminium-painted door
Electrically heated hot air oven
Hearson's patent biological incubator size A7
Incubator made by Charles Hearson and Co. Ltd.
Incubator by Charles Hearson and Co. c. 1939
circa 1939
Anhydric electric incubator for use up to 440C
Incubator, electric, trade names Anhydric oven
1960
Circular water-bath (drying oven) on iron stand. Rings missing. Late 19th century
1880-1900